Window-ventilator.



I. POMERANI Z. WINDOW VENTILATOR.

APPLICATION FILED PBB.21,1910.

1,009,173 Patented Nov. 21, 1911.

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ISIDOR POMERANTZ, OF KANSAS CITY, MISSOURI, ASSIGNOR TO WILLIAM MASTERS,OF KANSAS CITY, MISSOURI.

WIND OW-VENTILATOR.

To all whom it may concern:

Be it known that I, IsIDoR POMERANTZ, a citizen of the United States,residing at Kansas City, in the county of Jackson and State of Missouri,have invented a new and useful WVindow-Ventilator, of which thefollowing is a specification.

My invention relates to window ventilators and has for its principalobject to provide a simple, reliable and efficient means of ventilatingrooms without creating a draft.

A further object of my invention is to provide means for adjusting theventilating area.

A further object is to provide means for screening and filtering the airbefore it enters the room.

A further object is to provide a simple ventilator which may be appliedto any window, and entirely within the window sash, and which can beeasily removed for cleaning purposes. I

A further object is to provide the other improved details of structurehereinafter described and pointed out in the claims, ref- 1 1 erencebeing had to the accompanying drawings, in which Figure I is a verticalsection through the bottom rail of a window sash, showing aventilatorsecured therein and made in accordance with my invention. Fig.II is a detail perspective of the metal retaining box. Fig. III is asectional perspective of a part of the removable outer frame. Fig. IV isan end perspective of same. Fig. V is a detail perspective of a part ofthe re movable inner frame.

' Referring more in detail to the parts 1 designates the lower sash railof a window, which is provided with an opening extending partiallythereacross. Located in the sash opening is a retaining box 2,comprising a top portion 3, a bottom portion 4:, and end portions 5. Oneside'comprises a vertical longitudinal portion 6 adjacent to which is adownwardly inclined portion 7 having air openings 8 and drain holes 9;the outer side being open, asshown. The vertical longitudinal portion 6of box 2 acts as a deflector and will hereinafter be designated as such,the object of this construction being to prevent a direct draft throughthe ventilator.

Removably mounted in the open side of the retaining box 2 is a metalframe 10 pro- Specification of Letters Patent. Application filedFebruary 21, 1910.

Patented NOV. 21, 1911. Seria1 No. 5451204.

vided with a series of rectangular openings 11. The upper and loweredges of frame 10 are turned inward at right angles thereto, formingflanges 12 and 13 which are again turned inwardly at right angles,forming tracks 14 and 15. Revolubly mounted near the center of frame 10is a shaft 17 having a knurled knob 16 on its outer end and a pinion 18on its inner end, which is normally in mesh with a rack for the purposepresently described. Behind the frame 10 and within the retaining box isa sliding plate 19 provided with a series of rectangular openings 20similar to and adapted to register with the openings 11 of frame 10. Atthe top and bottom of each end of the plate 19 and projectingperpendicularly inwardly therefrom, are stub shafts 21 upon which arerevolubly mounted small flanged rollers 21; said rollers engaging thetracks 14 and 15 and maintaining a sliding contact between the frame 10and the plate 19. Near the center of plate 19 is a longitudinal slot 22whose lower edge is formed into a rack 23 which is adapted forengagement with the pinion 18. Thus it is obvious that when the knob 16is turned, it imparts like motion to the pinion 18 which in turn impartsreciprocal motion to the plate 19, thereby opening or closing the parts1120 or adjusting them to any desired area.

Immediately back of frame 10 and sliding plate 19, and within theretaining box 2, is a removable metal frame 36 whose upper and loweredges are turned at right angles to said frame 36 forming the spacingmembers 32 which are adapted to rest against the tracks 14-15 and thetop and bottom 3 and 4 of the retaining box. The sides 33 of the frame36 are likewise bent at right angles thereto and adapted to rest againstthe ends 5 of the retaining box.v The upper portion of the frame is openand a close mesh screen 34 is fastened securely thereover, for thepurpose of breaking the draft and preventing the ingress of insects,dust or any impurities floating in the air, while the lower port-ionremains uncut, forming a deflector to prevent a direct draft through theven tilator.

Immediately back of frame 36 and formed as to be in close contact withthe sides and ends of the retaining box 2, is a removable frame 37having an upper flange 38, a lower flange 39, end flanges 40, of suchlength as to uniformly meet the frame 36 and space the parts definitelyapart, a vertical portion 41 and a. downwardly inclined portion 42 whichis adapted to fit closely against the side 67 of retaining box 2. Thegreater part of the downwardly inclined portion 42, of frame 37, is cutaway and covered thereover with a close mesh metal screen 43 which isadapted to cover the openings 8 in the retaining box 2.

Fixed to the outside of the sash, at the top of the opening, is a cleat31 against which the upper edge of the retaining box 2 bears; and fixedto the inside of the sash are cleats 31 which extend entirely around theinside of the aperture, thus securing the ventilator substantially inposition and entirely within the limits of the window sash rail, leavingno prcjections on either side.

It will be understood that a ventilator similar to that alreadydescribed is also secured within the upper sash rail whereby the air inthe upper part of the room may have an exit; thus creating a circulationwhich may be adjusted and regulated to the desired degree.

The manipulation of the ventilator is very simple. Having beenconstructed and mounted as described, the condition of the atmosphere inthe room is noted. If the entire ventilating capacity is required theknob 16 is turned, thus turning pinion 18 and moving plate 19 to aposition in which the openings 20 register exactly with the openings 11of frame 10 and which is likewise the limit of movement in thatdirect-ion. The ventilation is stopped by reversing said motion, wherebythe openings in each portion register with each intervening uncut space.It will be obvious therefore that any desired quantity of air withinthese limits may be obtained by adjustment. It is apparent that shouldit be necessary to clean the ventilator all of the internal parts may beeasily removed and replaced as they are merely set into the box and notsecured permanently in place. It will also be obvious that the shape andsize of the retaining box and ventilating parts may be varied withoutdeparting from the spirit or scope of the invention.

Having thus described my invention, what I claim as new therein anddesire to secure by Letters-Patent is 1. A ventilator comprising aretaining box having the lower portion of its outer face inclinedinwardly and downwardly and provided with a longitudinal opening, a removable frame fitted within the box and having the lower portion of itsouter face inclined inwardly and downwardly and provided with a screenedopening overlying the open part of said box, a second removable framefitted within the box and abutting against the inner edges of the firstnamed frame, and having a screened opening at the top, the lower portionof the frame being imperforate, a slotted keeper frame removably mountedin said box and abutting against the inner edges of the second frame,and a damper plate slidably mounted back of the slotted keeper plate.

2. A ventilator comprising a retaining box having the lower portionofits outer face inclined inwardly and downwardly and provided with alongitudinal opening, and with a plurality of drain openings below thelongitudinal opening, a removable frame fitted within the box and havingthe lower portion of its outer face inclined inwardly and downwardly andprovided with a screened opening overlying the open part of said box, asecond removable frame fitted within the box and abutting against theinner edges of the first named frame, and having a screened opening atthe top, the lower portion of the frame being imperforate, a slottedkeeper frame removably mounted in said box and abutting against theinner edges of the second frame, and a damper plate slidably mountedback of the slotted keeper plate.

3. A ventilator comprising a retaining box having the lower portion ofits outer faceinclined inwardly and downwardly and provided with alongitudinal opening, a removable frame fitted within the box and havingthe lower portion of its outer face inclined inwardly and downwardly andprovided with a screened opening overlying the open part of said box, asecond removable frame fitted within the box and abutting against theinner edges of the first named frame, and having a screened opening atthe top, the lower portion of the frame being imperforate, a slottedkeeper frame removably mounted in said box and abutting against theinner edges of the second frame, the inner ends of the keeper framebeing turned toward each other to provide rails, and a damper plateslidably mounted back of the slotted keeper plate, said damper platebeing provided with posts, having rollers adapted to travel on saidrails.

ISIDOR POMERANTZ. Vitnesses:

GEO. D. LONG, H. F. Ross.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington. D. G.

